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xash3d-fwgs/ref_soft/r_main.c
Gleb Mazovetskiy 5e0a0765ce Trim all trailing whitespace 
The `.editorconfig` file in this repo is configured to trim all trailing
whitespace regardless of whether the line is modified.

Trims all trailing whitespace in the repository to make the codebase easier
to work with in editors that respect `.editorconfig`.

`git blame` becomes less useful on these lines but it already isn't very useful.

Commands:

```
find . -type f -name '*.h' -exec sed --in-place 's/[[:space:]]\+$//' {} \+
find . -type f -name '*.c' -exec sed --in-place 's/[[:space:]]\+$//' {} \+
```
2021-01-04 20:55:10 +03:00

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/*
gl_rmain.c - renderer main loop
Copyright (C) 2010 Uncle Mike
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
*/
#include "r_local.h"
#include "xash3d_mathlib.h"
#include "library.h"
//#include "beamdef.h"
//#include "particledef.h"
#include "entity_types.h"
#include "mod_local.h"
int r_cnumsurfs;
#define IsLiquidContents( cnt ) ( cnt == CONTENTS_WATER || cnt == CONTENTS_SLIME || cnt == CONTENTS_LAVA )
ref_instance_t RI;
// quake defines. will be refactored
// view origin
//
//
// screen size info
//
float xcenter, ycenter;
float xscale, yscale;
float xscaleinv, yscaleinv;
//float xscaleshrink, yscaleshrink;
float aliasxscale, aliasyscale, aliasxcenter, aliasycenter;
int r_screenwidth;
//
// refresh flags
//
//int d_spanpixcount;
//int r_polycount;
//int r_drawnpolycount;
//int r_wholepolycount;
int r_viewcluster, r_oldviewcluster;
cvar_t *r_lefthand;
cvar_t *sw_aliasstats;
cvar_t *sw_allow_modex;
cvar_t *sw_clearcolor;
cvar_t *sw_drawflat;
cvar_t *sw_draworder;
cvar_t *sw_maxedges;
cvar_t *sw_maxsurfs;
cvar_t *sw_reportedgeout;
cvar_t *sw_reportsurfout;
cvar_t *sw_stipplealpha;
cvar_t *sw_surfcacheoverride;
cvar_t *sw_waterwarp;
cvar_t *sw_texfilt;
cvar_t *sw_notransbrushes;
cvar_t *sw_noalphabrushes;
cvar_t *r_drawworld;
cvar_t *r_drawentities;
cvar_t *r_dspeeds;
cvar_t *r_fullbright;
cvar_t *r_lerpmodels;
cvar_t *r_novis;
cvar_t *r_lightmap;
cvar_t *r_dynamic;
cvar_t *r_traceglow;
cvar_t *tracerred;
cvar_t *tracergreen;
cvar_t *tracerblue;
cvar_t *traceralpha;
cvar_t *r_speeds;
cvar_t *r_lightlevel; //FIXME HACK
cvar_t *vid_fullscreen;
cvar_t *vid_gamma;
//PGM
cvar_t *sw_lockpvs;
//PGM
cvar_t *r_decals;
int r_viewcluster, r_oldviewcluster;
float d_sdivzstepu, d_tdivzstepu, d_zistepu;
float d_sdivzstepv, d_tdivzstepv, d_zistepv;
float d_sdivzorigin, d_tdivzorigin, d_ziorigin;
fixed16_t sadjust, tadjust, bbextents, bbextentt;
pixel_t *cacheblock;
int cachewidth;
pixel_t *d_viewbuffer;
short *d_pzbuffer;
unsigned int d_zrowbytes;
unsigned int d_zwidth;
mvertex_t *r_pcurrentvertbase;
//int c_surf;
qboolean r_surfsonstack;
int r_clipflags;
byte r_warpbuffer[WARP_WIDTH * WARP_HEIGHT];
int r_numallocatededges;
float r_aliasuvscale = 1.0;
static int R_RankForRenderMode( int rendermode )
{
switch( rendermode )
{
case kRenderTransTexture:
return 1; // draw second
case kRenderTransAdd:
return 2; // draw third
case kRenderGlow:
return 3; // must be last!
}
return 0;
}
#if 0
/*
================
R_GetEntityRenderMode
check for texture flags
================
*/
int R_GetEntityRenderMode( cl_entity_t *ent )
{
int i, opaque, trans;
mstudiotexture_t *ptexture;
cl_entity_t *oldent;
model_t *model;
studiohdr_t *phdr;
oldent = RI.currententity;
RI.currententity = ent;
return ent->curstate.rendermode;
}
#endif
void GAME_EXPORT R_AllowFog( qboolean allowed )
{
}
/*
===============
R_OpaqueEntity
Opaque entity can be brush or studio model but sprite
===============
*/
static qboolean R_OpaqueEntity( cl_entity_t *ent )
{
int rendermode = R_GetEntityRenderMode( ent );
if( rendermode == kRenderNormal )
return true;
if( sw_notransbrushes->value && ent->model && ent->model->type == mod_brush && rendermode == kRenderTransTexture )
return true;
if( sw_noalphabrushes->value && ent->model && ent->model->type == mod_brush && rendermode == kRenderTransAlpha )
return true;
return false;
}
/*
===============
R_TransEntityCompare
Sorting translucent entities by rendermode then by distance
===============
*/
static int R_TransEntityCompare( const cl_entity_t **a, const cl_entity_t **b )
{
cl_entity_t *ent1, *ent2;
vec3_t vecLen, org;
float dist1, dist2;
int rendermode1;
int rendermode2;
ent1 = (cl_entity_t *)*a;
ent2 = (cl_entity_t *)*b;
rendermode1 = R_GetEntityRenderMode( ent1 );
rendermode2 = R_GetEntityRenderMode( ent2 );
// sort by distance
if( ( ent1->model && ent1->model->type != mod_brush ) || rendermode1 != kRenderTransAlpha )
{
VectorAverage( ent1->model->mins, ent1->model->maxs, org );
VectorAdd( ent1->origin, org, org );
VectorSubtract( RI.vieworg, org, vecLen );
dist1 = DotProduct( vecLen, vecLen );
}
else dist1 = 1000000000;
if( ( ent1->model && ent2->model->type != mod_brush ) || rendermode2 != kRenderTransAlpha )
{
VectorAverage( ent2->model->mins, ent2->model->maxs, org );
VectorAdd( ent2->origin, org, org );
VectorSubtract( RI.vieworg, org, vecLen );
dist2 = DotProduct( vecLen, vecLen );
}
else dist2 = 1000000000;
if( dist1 > dist2 )
return -1;
if( dist1 < dist2 )
return 1;
// then sort by rendermode
if( R_RankForRenderMode( rendermode1 ) > R_RankForRenderMode( rendermode2 ))
return 1;
if( R_RankForRenderMode( rendermode1 ) < R_RankForRenderMode( rendermode2 ))
return -1;
return 0;
}
#if 1
/*
===============
R_WorldToScreen
Convert a given point from world into screen space
Returns true if we behind to screen
===============
*/
int R_WorldToScreen( const vec3_t point, vec3_t screen )
{
matrix4x4 worldToScreen;
qboolean behind;
float w;
if( !point || !screen )
return true;
Matrix4x4_Copy( worldToScreen, RI.worldviewProjectionMatrix );
screen[0] = worldToScreen[0][0] * point[0] + worldToScreen[0][1] * point[1] + worldToScreen[0][2] * point[2] + worldToScreen[0][3];
screen[1] = worldToScreen[1][0] * point[0] + worldToScreen[1][1] * point[1] + worldToScreen[1][2] * point[2] + worldToScreen[1][3];
w = worldToScreen[3][0] * point[0] + worldToScreen[3][1] * point[1] + worldToScreen[3][2] * point[2] + worldToScreen[3][3];
screen[2] = 0.0f; // just so we have something valid here
if( w < 0.001f )
{
screen[0] *= 100000;
screen[1] *= 100000;
behind = true;
}
else
{
float invw = 1.0f / w;
screen[0] *= invw;
screen[1] *= invw;
behind = false;
}
return behind;
}
/*
===============
R_ScreenToWorld
Convert a given point from screen into world space
===============
*/
void GAME_EXPORT R_ScreenToWorld( const vec3_t screen, vec3_t point )
{
matrix4x4 screenToWorld;
float w;
if( !point || !screen )
return;
Matrix4x4_Invert_Full( screenToWorld, RI.worldviewProjectionMatrix );
point[0] = screen[0] * screenToWorld[0][0] + screen[1] * screenToWorld[0][1] + screen[2] * screenToWorld[0][2] + screenToWorld[0][3];
point[1] = screen[0] * screenToWorld[1][0] + screen[1] * screenToWorld[1][1] + screen[2] * screenToWorld[1][2] + screenToWorld[1][3];
point[2] = screen[0] * screenToWorld[2][0] + screen[1] * screenToWorld[2][1] + screen[2] * screenToWorld[2][2] + screenToWorld[2][3];
w = screen[0] * screenToWorld[3][0] + screen[1] * screenToWorld[3][1] + screen[2] * screenToWorld[3][2] + screenToWorld[3][3];
if( w != 0.0f ) VectorScale( point, ( 1.0f / w ), point );
}
#endif
/*
===============
R_PushScene
===============
*/
void GAME_EXPORT R_PushScene( void )
{
if( ++tr.draw_stack_pos >= MAX_DRAW_STACK )
gEngfuncs.Host_Error( "draw stack overflow\n" );
tr.draw_list = &tr.draw_stack[tr.draw_stack_pos];
}
/*
===============
R_PopScene
===============
*/
void GAME_EXPORT R_PopScene( void )
{
if( --tr.draw_stack_pos < 0 )
gEngfuncs.Host_Error( "draw stack underflow\n" );
tr.draw_list = &tr.draw_stack[tr.draw_stack_pos];
}
/*
===============
R_ClearScene
===============
*/
void GAME_EXPORT R_ClearScene( void )
{
tr.draw_list->num_solid_entities = 0;
tr.draw_list->num_trans_entities = 0;
tr.draw_list->num_beam_entities = 0;
tr.draw_list->num_edge_entities = 0;
// clear the scene befor start new frame
if( gEngfuncs.drawFuncs->R_ClearScene != NULL )
gEngfuncs.drawFuncs->R_ClearScene();
}
/*
===============
R_AddEntity
===============
*/
qboolean GAME_EXPORT R_AddEntity( struct cl_entity_s *clent, int type )
{
if( !r_drawentities->value )
return false; // not allow to drawing
if( !clent || !clent->model )
return false; // if set to invisible, skip
if( FBitSet( clent->curstate.effects, EF_NODRAW ))
return false; // done
if( !R_ModelOpaque( clent->curstate.rendermode ) && CL_FxBlend( clent ) <= 0 )
return true; // invisible
if( type == ET_FRAGMENTED )
r_stats.c_client_ents++;
if( R_OpaqueEntity( clent ))
{
if( clent->model->type == mod_brush )
{
if( tr.draw_list->num_edge_entities >= MAX_VISIBLE_PACKET )
return false;
tr.draw_list->edge_entities[tr.draw_list->num_edge_entities] = clent;
tr.draw_list->num_edge_entities++;
return true;
}
// opaque
if( tr.draw_list->num_solid_entities >= MAX_VISIBLE_PACKET )
return false;
tr.draw_list->solid_entities[tr.draw_list->num_solid_entities] = clent;
tr.draw_list->num_solid_entities++;
}
else
{
// translucent
if( tr.draw_list->num_trans_entities >= MAX_VISIBLE_PACKET )
return false;
tr.draw_list->trans_entities[tr.draw_list->num_trans_entities] = clent;
tr.draw_list->num_trans_entities++;
}
return true;
}
/*
=============
R_Clear
=============
*/
static void R_Clear( int bitMask )
{
int bits;
#if 0
if( gEngfuncs.CL_IsDevOverviewMode( ))
pglClearColor( 0.0f, 1.0f, 0.0f, 1.0f ); // green background (Valve rules)
else pglClearColor( 0.5f, 0.5f, 0.5f, 1.0f );
bits = GL_DEPTH_BUFFER_BIT;
if( glState.stencilEnabled )
bits |= GL_STENCIL_BUFFER_BIT;
bits &= bitMask;
pglClear( bits );
// change ordering for overview
if( RI.drawOrtho )
{
gldepthmin = 1.0f;
gldepthmax = 0.0f;
}
else
{
gldepthmin = 0.0f;
gldepthmax = 1.0f;
}
pglDepthFunc( GL_LEQUAL );
pglDepthRange( gldepthmin, gldepthmax );
#endif
memset( vid.buffer, 0, vid.width * vid.height *2);
}
//=============================================================================
/*
===============
R_GetFarClip
===============
*/
static float R_GetFarClip( void )
{
if( WORLDMODEL && RI.drawWorld )
return MOVEVARS->zmax * 1.73f;
return 2048.0f;
}
/*
===============
R_SetupFrustum
===============
*/
void R_SetupFrustum( void )
{
#if 1
//ref_overview_t *ov = gEngfuncs.GetOverviewParms();
/*if( RP_NORMALPASS() && ( ENGINE_GET_PARM( PARM_WATER_LEVEL ) >= 3 ))
{
RI.fov_x = atan( tan( DEG2RAD( RI.fov_x ) / 2 ) * ( 0.97 + sin( gpGlobals->time * 1.5 ) * 0.03 )) * 2 / (M_PI / 180.0);
RI.fov_y = atan( tan( DEG2RAD( RI.fov_y ) / 2 ) * ( 1.03 - sin( gpGlobals->time * 1.5 ) * 0.03 )) * 2 / (M_PI / 180.0);
}*/
// build the transformation matrix for the given view angles
AngleVectors( RI.viewangles, RI.vforward, RI.vright, RI.vup );
//if( !r_lockfrustum->value )
{
VectorCopy( RI.vieworg, RI.cullorigin );
VectorCopy( RI.vforward, RI.cull_vforward );
VectorCopy( RI.vright, RI.cull_vright );
VectorCopy( RI.vup, RI.cull_vup );
}
// if( RI.drawOrtho )
// GL_FrustumInitOrtho( &RI.frustum, ov->xLeft, ov->xRight, ov->yTop, ov->yBottom, ov->zNear, ov->zFar );
// else GL_FrustumInitProj( &RI.frustum, 0.0f, R_GetFarClip(), RI.fov_x, RI.fov_y ); // NOTE: we ignore nearplane here (mirrors only)
#endif
}
/*
=============
R_SetupProjectionMatrix
=============
*/
static void R_SetupProjectionMatrix( matrix4x4 m )
{
#if 1
float xMin, xMax, yMin, yMax, zNear, zFar;
if( RI.drawOrtho )
{
const ref_overview_t *ov = gEngfuncs.GetOverviewParms();
Matrix4x4_CreateOrtho( m, ov->xLeft, ov->xRight, ov->yTop, ov->yBottom, ov->zNear, ov->zFar );
return;
}
RI.farClip = R_GetFarClip();
zNear = 4.0f;
zFar = max( 256.0f, RI.farClip );
yMax = zNear * tan( RI.fov_y * M_PI_F / 360.0f );
yMin = -yMax;
xMax = zNear * tan( RI.fov_x * M_PI_F / 360.0f );
xMin = -xMax;
Matrix4x4_CreateProjection( m, xMax, xMin, yMax, yMin, zNear, zFar );
#endif
}
/*
=============
R_SetupModelviewMatrix
=============
*/
static void R_SetupModelviewMatrix( matrix4x4 m )
{
#if 1
Matrix4x4_CreateModelview( m );
Matrix4x4_ConcatRotate( m, -RI.viewangles[2], 1, 0, 0 );
Matrix4x4_ConcatRotate( m, -RI.viewangles[0], 0, 1, 0 );
Matrix4x4_ConcatRotate( m, -RI.viewangles[1], 0, 0, 1 );
Matrix4x4_ConcatTranslate( m, -RI.vieworg[0], -RI.vieworg[1], -RI.vieworg[2] );
#endif
}
/*
=============
R_LoadIdentity
=============
*/
void R_LoadIdentity( void )
{
#if 0
if( tr.modelviewIdentity ) return;
Matrix4x4_LoadIdentity( RI.objectMatrix );
Matrix4x4_Copy( RI.modelviewMatrix, RI.worldviewMatrix );
pglMatrixMode( GL_MODELVIEW );
GL_LoadMatrix( RI.modelviewMatrix );
tr.modelviewIdentity = true;
#endif
}
/*
=============
R_RotateForEntity
=============
*/
void R_RotateForEntity( cl_entity_t *e )
{
#if 0
float scale = 1.0f;
if( e == gEngfuncs.GetEntityByIndex( 0 ) )
{
R_LoadIdentity();
return;
}
if( e->model->type != mod_brush && e->curstate.scale > 0.0f )
scale = e->curstate.scale;
Matrix4x4_CreateFromEntity( RI.objectMatrix, e->angles, e->origin, scale );
Matrix4x4_ConcatTransforms( RI.modelviewMatrix, RI.worldviewMatrix, RI.objectMatrix );
pglMatrixMode( GL_MODELVIEW );
GL_LoadMatrix( RI.modelviewMatrix );
tr.modelviewIdentity = false;
#endif
}
/*
=============
R_TranslateForEntity
=============
*/
void R_TranslateForEntity( cl_entity_t *e )
{
#if 0
float scale = 1.0f;
if( e == gEngfuncs.GetEntityByIndex( 0 ) )
{
R_LoadIdentity();
return;
}
if( e->model->type != mod_brush && e->curstate.scale > 0.0f )
scale = e->curstate.scale;
Matrix4x4_CreateFromEntity( RI.objectMatrix, vec3_origin, e->origin, scale );
Matrix4x4_ConcatTransforms( RI.modelviewMatrix, RI.worldviewMatrix, RI.objectMatrix );
pglMatrixMode( GL_MODELVIEW );
GL_LoadMatrix( RI.modelviewMatrix );
tr.modelviewIdentity = false;
#endif
}
/*
===============
R_FindViewLeaf
===============
*/
void R_FindViewLeaf( void )
{
RI.oldviewleaf = RI.viewleaf;
RI.viewleaf = gEngfuncs.Mod_PointInLeaf( RI.pvsorigin, WORLDMODEL->nodes );
}
/*
===============
R_SetupFrame
===============
*/
static void R_SetupFrame( void )
{
// setup viewplane dist
RI.viewplanedist = DotProduct( RI.vieworg, RI.vforward );
// if( !gl_nosort->value )
{
// sort translucents entities by rendermode and distance
qsort( tr.draw_list->trans_entities, tr.draw_list->num_trans_entities, sizeof( cl_entity_t* ), (void*)R_TransEntityCompare );
}
// current viewleaf
if( RI.drawWorld )
{
RI.isSkyVisible = false; // unknown at this moment
R_FindViewLeaf();
}
// setup twice until globals fully refactored
R_SetupFrameQ();
}
#if 0
/*
=============
R_SetupGL
=============
*/
void R_SetupGL( qboolean set_gl_state )
{
R_SetupModelviewMatrix( RI.worldviewMatrix );
R_SetupProjectionMatrix( RI.projectionMatrix );
Matrix4x4_Concat( RI.worldviewProjectionMatrix, RI.projectionMatrix, RI.worldviewMatrix );
if( !set_gl_state ) return;
if( RP_NORMALPASS( ))
{
int x, x2, y, y2;
// set up viewport (main, playersetup)
x = floor( RI.viewport[0] * gpGlobals->width / gpGlobals->width );
x2 = ceil(( RI.viewport[0] + RI.viewport[2] ) * gpGlobals->width / gpGlobals->width );
y = floor( gpGlobals->height - RI.viewport[1] * gpGlobals->height / gpGlobals->height );
y2 = ceil( gpGlobals->height - ( RI.viewport[1] + RI.viewport[3] ) * gpGlobals->height / gpGlobals->height );
pglViewport( x, y2, x2 - x, y - y2 );
}
else
{
// envpass, mirrorpass
pglViewport( RI.viewport[0], RI.viewport[1], RI.viewport[2], RI.viewport[3] );
}
pglMatrixMode( GL_PROJECTION );
GL_LoadMatrix( RI.projectionMatrix );
pglMatrixMode( GL_MODELVIEW );
GL_LoadMatrix( RI.worldviewMatrix );
if( FBitSet( RI.params, RP_CLIPPLANE ))
{
GLdouble clip[4];
mplane_t *p = &RI.clipPlane;
clip[0] = p->normal[0];
clip[1] = p->normal[1];
clip[2] = p->normal[2];
clip[3] = -p->dist;
pglClipPlane( GL_CLIP_PLANE0, clip );
pglEnable( GL_CLIP_PLANE0 );
}
GL_Cull( GL_FRONT );
pglDisable( GL_BLEND );
pglDisable( GL_ALPHA_TEST );
pglColor4f( 1.0f, 1.0f, 1.0f, 1.0f );
}
/*
=============
R_EndGL
=============
*/
static void R_EndGL( void )
{
if( RI.params & RP_CLIPPLANE )
pglDisable( GL_CLIP_PLANE0 );
}
#endif
/*
=============
R_RecursiveFindWaterTexture
using to find source waterleaf with
watertexture to grab fog values from it
=============
*/
static image_t *R_RecursiveFindWaterTexture( const mnode_t *node, const mnode_t *ignore, qboolean down )
{
image_t *tex = NULL;
// assure the initial node is not null
// we could check it here, but we would rather check it
// outside the call to get rid of one additional recursion level
Assert( node != NULL );
// ignore solid nodes
if( node->contents == CONTENTS_SOLID )
return NULL;
if( node->contents < 0 )
{
mleaf_t *pleaf;
msurface_t **mark;
int i, c;
// ignore non-liquid leaves
if( node->contents != CONTENTS_WATER && node->contents != CONTENTS_LAVA && node->contents != CONTENTS_SLIME )
return NULL;
// find texture
pleaf = (mleaf_t *)node;
mark = pleaf->firstmarksurface;
c = pleaf->nummarksurfaces;
for( i = 0; i < c; i++, mark++ )
{
if( (*mark)->flags & SURF_DRAWTURB && (*mark)->texinfo && (*mark)->texinfo->texture )
return R_GetTexture( (*mark)->texinfo->texture->gl_texturenum );
}
// texture not found
return NULL;
}
// this is a regular node
// traverse children
if( node->children[0] && ( node->children[0] != ignore ))
{
tex = R_RecursiveFindWaterTexture( node->children[0], node, true );
if( tex ) return tex;
}
if( node->children[1] && ( node->children[1] != ignore ))
{
tex = R_RecursiveFindWaterTexture( node->children[1], node, true );
if( tex ) return tex;
}
// for down recursion, return immediately
if( down ) return NULL;
// texture not found, step up if any
if( node->parent )
return R_RecursiveFindWaterTexture( node->parent, node, false );
// top-level node, bail out
return NULL;
}
extern void R_PolysetFillSpans8 ( void * );
extern void R_PolysetDrawSpansConstant8_33( void *pspanpackage);
extern void R_PolysetDrawSpans8_33( void *pspanpackage);
/*
=============
R_DrawEntitiesOnList
=============
*/
void R_DrawEntitiesOnList( void )
{
extern void (*d_pdrawspans)(void *);
int i;
//extern int d_aflatcolor;
//d_aflatcolor = 0;
tr.blend = 1.0f;
// GL_CheckForErrors();
//RI.currententity = gEngfuncs.GetEntityByIndex(0);
d_pdrawspans = R_PolysetFillSpans8;
GL_SetRenderMode(kRenderNormal);
// first draw solid entities
for( i = 0; i < tr.draw_list->num_solid_entities && !RI.onlyClientDraw; i++ )
{
RI.currententity = tr.draw_list->solid_entities[i];
RI.currentmodel = RI.currententity->model;
//d_aflatcolor += 500;
Assert( RI.currententity != NULL );
Assert( RI.currentmodel != NULL );
switch( RI.currentmodel->type )
{
case mod_brush:
R_DrawBrushModel( RI.currententity );
break;
case mod_alias:
//R_DrawAliasModel( RI.currententity );
break;
case mod_studio:
R_SetUpWorldTransform();
R_DrawStudioModel( RI.currententity );
#if 0
// gradient debug (for colormap testing)
{finalvert_t fv[3];
void R_AliasSetUpTransform (void);
extern void (*d_pdrawspans)(void *);
extern void R_PolysetFillSpans8 ( void * );
d_pdrawspans = R_PolysetFillSpans8;
//RI.currententity = gEngfuncs.GetEntityByIndex(0);
R_AliasSetUpTransform();
image_t *image = R_GetTexture(GL_LoadTexture("gfx/env/desertbk", NULL, 0, 0));
r_affinetridesc.pskin = image->pixels[0];
r_affinetridesc.skinwidth = image->width;
r_affinetridesc.skinheight = image->height;
R_SetupFinalVert( &fv[0], 0, -50, 50, 31 << 8, 0, 0);
R_SetupFinalVert( &fv[1], 0, 50, 50, 0 << 8, image->width, 0);
R_SetupFinalVert( &fv[2], 0, 0, 0, 0 << 8, image->width/2, image->height);
R_RenderTriangle( &fv[0], &fv[1], &fv[2] );
}
#endif
break;
default:
break;
}
}
// GL_CheckForErrors();
// quake-specific feature
// R_DrawAlphaTextureChains();
// GL_CheckForErrors();
R_SetUpWorldTransform();
// draw sprites seperately, because of alpha blending
for( i = 0; i < tr.draw_list->num_solid_entities && !RI.onlyClientDraw; i++ )
{
RI.currententity = tr.draw_list->solid_entities[i];
RI.currentmodel = RI.currententity->model;
Assert( RI.currententity != NULL );
Assert( RI.currentmodel != NULL );
switch( RI.currentmodel->type )
{
case mod_sprite:
R_DrawSpriteModel( RI.currententity );
break;
}
}
// GL_CheckForErrors();
if( !RI.onlyClientDraw )
{
gEngfuncs.CL_DrawEFX( tr.frametime, false );
}
// GL_CheckForErrors();
if( RI.drawWorld )
gEngfuncs.pfnDrawNormalTriangles();
// GL_CheckForErrors();
d_pdrawspans = R_PolysetDrawSpans8_33;
// then draw translucent entities
for( i = 0; i < tr.draw_list->num_trans_entities && !RI.onlyClientDraw; i++ )
{
RI.currententity = tr.draw_list->trans_entities[i];
RI.currentmodel = RI.currententity->model;
// handle studiomodels with custom rendermodes on texture
if( RI.currententity->curstate.rendermode != kRenderNormal )
tr.blend = CL_FxBlend( RI.currententity ) / 255.0f;
else tr.blend = 1.0f; // draw as solid but sorted by distance
if( tr.blend <= 0.0f ) continue;
Assert( RI.currententity != NULL );
Assert( RI.currentmodel != NULL );
switch( RI.currentmodel->type )
{
case mod_brush:
R_DrawBrushModel( RI.currententity );
break;
case mod_alias:
//R_DrawAliasModel( RI.currententity );
break;
case mod_studio:
R_SetUpWorldTransform();
R_DrawStudioModel( RI.currententity );
break;
case mod_sprite:
R_SetUpWorldTransform();
R_DrawSpriteModel( RI.currententity );
break;
default:
break;
}
}
// GL_CheckForErrors();
if( RI.drawWorld )
{
// pglTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE );
gEngfuncs.pfnDrawTransparentTriangles ();
}
// GL_CheckForErrors();
if( !RI.onlyClientDraw )
{
R_AllowFog( false );
gEngfuncs.CL_DrawEFX( tr.frametime, true );
R_AllowFog( true );
}
//GL_CheckForErrors();
// pglDisable( GL_BLEND ); // Trinity Render issues
GL_SetRenderMode(kRenderNormal);
R_SetUpWorldTransform();
if( !RI.onlyClientDraw )
R_DrawViewModel();
gEngfuncs.CL_ExtraUpdate();
//GL_CheckForErrors();
}
#if 1
qboolean insubmodel;
/*
=============
R_BmodelCheckBBox
=============
*/
int R_BmodelCheckBBox (float *minmaxs)
{
int i, *pindex, clipflags;
vec3_t acceptpt, rejectpt;
float d;
clipflags = 0;
for (i=0 ; i<4 ; i++)
{
// generate accept and reject points
// FIXME: do with fast look-ups or integer tests based on the sign bit
// of the floating point values
pindex = qfrustum.pfrustum_indexes[i];
rejectpt[0] = minmaxs[pindex[0]];
rejectpt[1] = minmaxs[pindex[1]];
rejectpt[2] = minmaxs[pindex[2]];
d = DotProduct (rejectpt, qfrustum.view_clipplanes[i].normal);
d -= qfrustum.view_clipplanes[i].dist;
if (d <= 0)
return BMODEL_FULLY_CLIPPED;
acceptpt[0] = minmaxs[pindex[3+0]];
acceptpt[1] = minmaxs[pindex[3+1]];
acceptpt[2] = minmaxs[pindex[3+2]];
d = DotProduct (acceptpt, qfrustum.view_clipplanes[i].normal);
d -= qfrustum.view_clipplanes[i].dist;
if (d <= 0)
clipflags |= (1<<i);
}
return clipflags;
}
/*
===================
R_FindTopNode
===================
*/
mnode_t *R_FindTopnode (vec3_t mins, vec3_t maxs)
{
mplane_t *splitplane;
int sides;
mnode_t *node;
node = WORLDMODEL->nodes;
while (1)
{
if (node->visframe != tr.visframecount)
return NULL; // not visible at all
if (node->contents < 0)
{
if (node->contents != CONTENTS_SOLID)
return node; // we've reached a non-solid leaf, so it's
// visible and not BSP clipped
return NULL; // in solid, so not visible
}
splitplane = node->plane;
sides = BOX_ON_PLANE_SIDE (mins, maxs, splitplane);
if (sides == 3)
return node; // this is the splitter
// not split yet; recurse down the contacted side
if (sides & 1)
node = node->children[0];
else
node = node->children[1];
}
}
/*
=============
RotatedBBox
Returns an axially aligned box that contains the input box at the given rotation
=============
*/
void RotatedBBox (vec3_t mins, vec3_t maxs, vec3_t angles, vec3_t tmins, vec3_t tmaxs)
{
vec3_t tmp, v;
int i, j;
vec3_t forward, right, up;
if (!angles[0] && !angles[1] && !angles[2])
{
VectorCopy (mins, tmins);
VectorCopy (maxs, tmaxs);
return;
}
for (i=0 ; i<3 ; i++)
{
tmins[i] = 99999;
tmaxs[i] = -99999;
}
AngleVectors (angles, forward, right, up);
for ( i = 0; i < 8; i++ )
{
if ( i & 1 )
tmp[0] = mins[0];
else
tmp[0] = maxs[0];
if ( i & 2 )
tmp[1] = mins[1];
else
tmp[1] = maxs[1];
if ( i & 4 )
tmp[2] = mins[2];
else
tmp[2] = maxs[2];
VectorScale (forward, tmp[0], v);
VectorMA (v, -tmp[1], right, v);
VectorMA (v, tmp[2], up, v);
for (j=0 ; j<3 ; j++)
{
if (v[j] < tmins[j])
tmins[j] = v[j];
if (v[j] > tmaxs[j])
tmaxs[j] = v[j];
}
}
}
/*
=============
R_DrawBEntitiesOnList
=============
*/
void R_DrawBEntitiesOnList (void)
{
int i, clipflags;
vec3_t oldorigin;
vec3_t mins, maxs;
float minmaxs[6];
mnode_t *topnode;
VectorCopy (tr.modelorg, oldorigin);
insubmodel = true;
//r_dlightframecount = r_framecount;
for( i = 0; i < tr.draw_list->num_edge_entities && !RI.onlyClientDraw; i++ )
{
int k;
RI.currententity = tr.draw_list->edge_entities[i];
RI.currentmodel = RI.currententity->model;
if (!RI.currentmodel)
continue;
if (RI.currentmodel->nummodelsurfaces == 0)
continue; // clip brush only
//if ( currententity->flags & RF_BEAM )
//continue;
if (RI.currentmodel->type != mod_brush)
continue;
// see if the bounding box lets us trivially reject, also sets
// trivial accept status
RotatedBBox (RI.currentmodel->mins, RI.currentmodel->maxs,
RI.currententity->angles, mins, maxs);
#if 0
mins[0] = mins[0] - 100;
mins[1] = mins[1] - 100;
mins[2] = mins[2] - 100;
maxs[0] = maxs[0] + 100;
maxs[1] = maxs[1] + 100;
maxs[2] = maxs[2] + 100;
#endif
VectorAdd (mins, RI.currententity->origin, minmaxs);
VectorAdd (maxs, RI.currententity->origin, (minmaxs+3));
clipflags = R_BmodelCheckBBox (minmaxs);
if (clipflags == BMODEL_FULLY_CLIPPED)
continue; // off the edge of the screen
//clipflags = 0;
topnode = R_FindTopnode (minmaxs, minmaxs+3);
if (!topnode)
continue; // no part in a visible leaf
VectorCopy (RI.currententity->origin, r_entorigin);
VectorSubtract (RI.vieworg, r_entorigin, tr.modelorg);
//VectorSubtract (r_origin, RI.currententity->origin, modelorg);
r_pcurrentvertbase = RI.currentmodel->vertexes;
// FIXME: stop transforming twice
R_RotateBmodel ();
// calculate dynamic lighting for bmodel
// this will reset RI.currententity, do we need this?
//R_PushDlights ();
/*if (clmodel->firstmodelsurface != 0)
{
for (k=0 ; k<r_refdef2.numDlights ; k++)
{
R_MarkLights (&r_refdef2.dlights[k], 1<<k,
clmodel->nodes + clmodel->firstnode);
}
}*/
// calculate dynamic lighting for bmodel
for( k = 0; k < MAX_DLIGHTS; k++ )
{
dlight_t *l = gEngfuncs.GetDynamicLight( k );
vec3_t origin_l, oldorigin;
if( l->die < gpGlobals->time || !l->radius )
continue;
VectorCopy( l->origin, oldorigin ); // save lightorigin
Matrix4x4_CreateFromEntity( RI.objectMatrix, RI.currententity->angles, RI.currententity->origin, 1 );
Matrix4x4_VectorITransform( RI.objectMatrix, l->origin, origin_l );
VectorCopy( origin_l, l->origin ); // move light in bmodel space
R_MarkLights( l, 1<<k, RI.currentmodel->nodes + RI.currentmodel->hulls[0].firstclipnode );
VectorCopy( oldorigin, l->origin ); // restore lightorigin*/
//R_MarkLights( l, 1<<k, RI.currentmodel->nodes + RI.currentmodel->hulls[0].firstclipnode );
}
// RI.currentmodel = tr.draw_list->solid_entities[i]->model;
// RI.currententity = tr.draw_list->solid_entities[i];
RI.currententity->topnode = topnode;
//ASSERT( RI.currentmodel == tr.draw_list->solid_entities[i]->model );
if (topnode->contents >= 0)
{
// not a leaf; has to be clipped to the world BSP
r_clipflags = clipflags;
R_DrawSolidClippedSubmodelPolygons (RI.currentmodel, topnode);
}
else
{
// falls entirely in one leaf, so we just put all the
// edges in the edge list and let 1/z sorting handle
// drawing order
//ASSERT( RI.currentmodel == tr.draw_list->solid_entities[i]->model );
R_DrawSubmodelPolygons (RI.currentmodel, clipflags, topnode);
}
RI.currententity->topnode = NULL;
// put back world rotation and frustum clipping
// FIXME: R_RotateBmodel should just work off base_vxx
VectorCopy (RI.base_vpn, RI.vforward);
VectorCopy (RI.base_vup, RI.vup);
VectorCopy (RI.base_vright, RI.vright);
VectorCopy (oldorigin, tr.modelorg);
R_TransformFrustum ();
}
insubmodel = false;
}
extern qboolean alphaspans;
/*
=============
R_DrawBEntitiesOnList
=============
*/
void R_DrawBrushModel(cl_entity_t *pent)
{
int i, clipflags;
vec3_t oldorigin;
vec3_t mins, maxs;
float minmaxs[6];
mnode_t *topnode;
int k;
edge_t ledges[NUMSTACKEDGES +
((CACHE_SIZE - 1) / sizeof(edge_t)) + 1];
surf_t lsurfs[NUMSTACKSURFACES +
((CACHE_SIZE - 1) / sizeof(surf_t)) + 1];
if ( !RI.drawWorld )
return;
if (auxedges)
{
r_edges = auxedges;
}
else
{
r_edges = (edge_t *)
(((long)&ledges[0] + CACHE_SIZE - 1) & ~(CACHE_SIZE - 1));
}
if (r_surfsonstack)
{
surfaces = (surf_t *)
(((long)&lsurfs[0] + CACHE_SIZE - 1) & ~(CACHE_SIZE - 1));
surf_max = &surfaces[r_cnumsurfs];
// surface 0 doesn't really exist; it's just a dummy because index 0
// is used to indicate no edge attached to surface
memset(&surfaces[0], 0, sizeof(surf_t));
surfaces--;
R_SurfacePatch ();
}
R_BeginEdgeFrame();
VectorCopy (tr.modelorg, oldorigin);
insubmodel = true;
//r_dlightframecount = r_framecount;
if (!RI.currentmodel)
return;
if (RI.currentmodel->nummodelsurfaces == 0)
return; // clip brush only
//if ( currententity->flags & RF_BEAM )
//continue;
if (RI.currentmodel->type != mod_brush)
return;
// see if the bounding box lets us trivially reject, also sets
// trivial accept status
RotatedBBox (RI.currentmodel->mins, RI.currentmodel->maxs,
RI.currententity->angles, mins, maxs);
#if 0
mins[0] = mins[0] - 100;
mins[1] = mins[1] - 100;
mins[2] = mins[2] - 100;
maxs[0] = maxs[0] + 100;
maxs[1] = maxs[1] + 100;
maxs[2] = maxs[2] + 100;
#endif
VectorAdd (mins, RI.currententity->origin, minmaxs);
VectorAdd (maxs, RI.currententity->origin, (minmaxs+3));
clipflags = R_BmodelCheckBBox (minmaxs);
if (clipflags == BMODEL_FULLY_CLIPPED)
return; // off the edge of the screen
//clipflags = 0;
topnode = R_FindTopnode (minmaxs, minmaxs+3);
if (!topnode)
return; // no part in a visible leaf
alphaspans = true;
VectorCopy (RI.currententity->origin, r_entorigin);
VectorSubtract (RI.vieworg, r_entorigin, tr.modelorg);
//VectorSubtract (r_origin, RI.currententity->origin, modelorg);
r_pcurrentvertbase = RI.currentmodel->vertexes;
// FIXME: stop transforming twice
R_RotateBmodel ();
// calculate dynamic lighting for bmodel
// this will reset RI.currententity, do we need this?
//R_PushDlights ();
/*if (clmodel->firstmodelsurface != 0)
{
for (k=0 ; k<r_refdef2.numDlights ; k++)
{
R_MarkLights (&r_refdef2.dlights[k], 1<<k,
clmodel->nodes + clmodel->firstnode);
}
}*/
// calculate dynamic lighting for bmodel
for( k = 0; k < MAX_DLIGHTS; k++ )
{
dlight_t *l = gEngfuncs.GetDynamicLight( k );
vec3_t origin_l, oldorigin;
if( l->die < gpGlobals->time || !l->radius )
continue;
VectorCopy( l->origin, oldorigin ); // save lightorigin
Matrix4x4_CreateFromEntity( RI.objectMatrix, RI.currententity->angles, RI.currententity->origin, 1 );
Matrix4x4_VectorITransform( RI.objectMatrix, l->origin, origin_l );
tr.modelviewIdentity = false;
VectorCopy( origin_l, l->origin ); // move light in bmodel space
R_MarkLights( l, 1<<k, RI.currentmodel->nodes + RI.currentmodel->hulls[0].firstclipnode );
VectorCopy( oldorigin, l->origin ); // restore lightorigin*/
//R_MarkLights( l, 1<<k, RI.currentmodel->nodes + RI.currentmodel->hulls[0].firstclipnode );
}
// RI.currentmodel = tr.draw_list->solid_entities[i]->model;
// RI.currententity = tr.draw_list->solid_entities[i];
RI.currententity->topnode = topnode;
//ASSERT( RI.currentmodel == tr.draw_list->solid_entities[i]->model );
if (topnode->contents >= 0)
{
// not a leaf; has to be clipped to the world BSP
r_clipflags = clipflags;
R_DrawSolidClippedSubmodelPolygons (RI.currentmodel, topnode);
}
else
{
// falls entirely in one leaf, so we just put all the
// edges in the edge list and let 1/z sorting handle
// drawing order
//ASSERT( RI.currentmodel == tr.draw_list->solid_entities[i]->model );
R_DrawSubmodelPolygons (RI.currentmodel, clipflags, topnode);
}
RI.currententity->topnode = NULL;
// put back world rotation and frustum clipping
// FIXME: R_RotateBmodel should just work off base_vxx
VectorCopy (RI.base_vpn, RI.vforward);
VectorCopy (RI.base_vup, RI.vup);
VectorCopy (RI.base_vright, RI.vright);
VectorCopy (oldorigin, tr.modelorg);
R_TransformFrustum ();
insubmodel = false;
R_ScanEdges();
alphaspans = false;
}
#endif
/*
================
R_EdgeDrawing
================
*/
void R_EdgeDrawing (void)
{
edge_t ledges[NUMSTACKEDGES +
((CACHE_SIZE - 1) / sizeof(edge_t)) + 1];
surf_t lsurfs[NUMSTACKSURFACES +
((CACHE_SIZE - 1) / sizeof(surf_t)) + 1];
if ( !RI.drawWorld )
return;
if (auxedges)
{
r_edges = auxedges;
}
else
{
r_edges = (edge_t *)
(((long)&ledges[0] + CACHE_SIZE - 1) & ~(CACHE_SIZE - 1));
}
if (r_surfsonstack)
{
surfaces = (surf_t *)
(((long)&lsurfs[0] + CACHE_SIZE - 1) & ~(CACHE_SIZE - 1));
surf_max = &surfaces[r_cnumsurfs];
// surface 0 doesn't really exist; it's just a dummy because index 0
// is used to indicate no edge attached to surface
memset(&surfaces[0], 0, sizeof(surf_t));
surfaces--;
R_SurfacePatch ();
}
R_BeginEdgeFrame ();
// this will prepare edges
R_RenderWorld ();
// move brushes to separate list to merge with edges?
R_DrawBEntitiesOnList ();
// display all edges
R_ScanEdges ();
}
#if 0
/*
===============
R_MarkLeaves
Mark the leaves and nodes that are in the PVS for the current leaf
===============
*/
void R_MarkLeaves( void )
{
qboolean novis = false;
qboolean force = false;
mleaf_t *leaf = NULL;
mnode_t *node;
vec3_t test;
int i;
if( !RI.drawWorld ) return;
/*if( FBitSet( r_novis->flags, FCVAR_CHANGED ) || tr.fResetVis )
{
// force recalc viewleaf
ClearBits( r_novis->flags, FCVAR_CHANGED );
tr.fResetVis = false;
RI.viewleaf = NULL;
}*/
VectorCopy( RI.pvsorigin, test );
if( RI.viewleaf != NULL )
{
// merge two leafs that can be a crossed-line contents
if( RI.viewleaf->contents == CONTENTS_EMPTY )
{
VectorSet( test, RI.pvsorigin[0], RI.pvsorigin[1], RI.pvsorigin[2] - 16.0f );
leaf = gEngfuncs.Mod_PointInLeaf( test, WORLDMODEL->nodes );
}
else
{
VectorSet( test, RI.pvsorigin[0], RI.pvsorigin[1], RI.pvsorigin[2] + 16.0f );
leaf = gEngfuncs.Mod_PointInLeaf( test, WORLDMODEL->nodes );
}
if(( leaf->contents != CONTENTS_SOLID ) && ( RI.viewleaf != leaf ))
force = true;
}
if( RI.viewleaf == RI.oldviewleaf && RI.viewleaf != NULL && !force )
return;
// development aid to let you run around
// and see exactly where the pvs ends
//if( sw_lockpvs->value ) return;
RI.oldviewleaf = RI.viewleaf;
tr.visframecount++;
if( RI.drawOrtho || !RI.viewleaf || !WORLDMODEL->visdata )
novis = true;
gEngfuncs.R_FatPVS( RI.pvsorigin, REFPVS_RADIUS, RI.visbytes, FBitSet( RI.params, RP_OLDVIEWLEAF ), novis );
if( force && !novis ) gEngfuncs.R_FatPVS( test, REFPVS_RADIUS, RI.visbytes, true, novis );
for( i = 0; i < WORLDMODEL->numleafs; i++ )
{
if( CHECKVISBIT( RI.visbytes, i ))
{
node = (mnode_t *)&WORLDMODEL->leafs[i+1];
do
{
if( node->visframe == tr.visframecount )
break;
node->visframe = tr.visframecount;
node = node->parent;
} while( node );
}
}
}
#else
/*
===============
R_MarkLeaves
===============
*/
void R_MarkLeaves (void)
{
byte *vis;
mnode_t *node;
int i;
if (r_oldviewcluster == r_viewcluster && !r_novis->value && r_viewcluster != -1)
return;
tr.visframecount++;
r_oldviewcluster = r_viewcluster;
gEngfuncs.R_FatPVS( RI.pvsorigin, REFPVS_RADIUS, RI.visbytes, FBitSet( RI.params, RP_OLDVIEWLEAF ), false );
vis = RI.visbytes;
for (i = 0; i < WORLDMODEL->numleafs; i++)
{
if (vis[i>>3] & (1<<(i&7)))
{
node = (mnode_t *) &WORLDMODEL->leafs[i+1];
do
{
if (node->visframe == tr.visframecount)
break;
node->visframe = tr.visframecount;
node = node->parent;
} while (node);
}
}
}
#endif
/*
================
R_RenderScene
R_SetupRefParams must be called right before
================
*/
void GAME_EXPORT R_RenderScene( void )
{
if( !WORLDMODEL && RI.drawWorld )
gEngfuncs.Host_Error( "R_RenderView: NULL worldmodel\n" );
// frametime is valid only for normal pass
if( RP_NORMALPASS( ))
tr.frametime = gpGlobals->time - gpGlobals->oldtime;
else tr.frametime = 0.0;
// begin a new frame
tr.framecount++;
if( tr.map_unload )
{
D_FlushCaches();
tr.map_unload = false;
}
R_SetupFrustum();
R_SetupFrame();
R_PushDlights();
R_SetupModelviewMatrix( RI.worldviewMatrix );
R_SetupProjectionMatrix( RI.projectionMatrix );
Matrix4x4_Concat( RI.worldviewProjectionMatrix, RI.projectionMatrix, RI.worldviewMatrix );
tr.modelviewIdentity = true;
// R_SetupGL( true );
//R_Clear( ~0 );
R_MarkLeaves();
// R_PushDlights (r_worldmodel); ??
//R_DrawWorld();
R_EdgeDrawing ();
gEngfuncs.CL_ExtraUpdate (); // don't let sound get messed up if going slow
R_DrawEntitiesOnList();
// R_DrawWaterSurfaces();
// R_EndGL();
}
/*
===============
R_DoResetGamma
gamma will be reset for
some type of screenshots
===============
*/
qboolean R_DoResetGamma( void )
{
// FIXME: this looks ugly. apply the backward gamma changes to the output image
return false;
#if 0
switch( cls.scrshot_action )
{
case scrshot_normal:
if( CL_IsDevOverviewMode( ))
return true;
return false;
case scrshot_snapshot:
if( CL_IsDevOverviewMode( ))
return true;
return false;
case scrshot_plaque:
case scrshot_savegame:
case scrshot_envshot:
case scrshot_skyshot:
case scrshot_mapshot:
return true;
default:
return false;
}
#endif
}
/*
===============
R_BeginFrame
===============
*/
void GAME_EXPORT R_BeginFrame( qboolean clearScene )
{
#if 0 // unused
if( R_DoResetGamma( ))
{
gEngfuncs.BuildGammaTable( 1.8f, 0.0f );
D_FlushCaches( );
// next frame will be restored gamma
SetBits( vid_brightness->flags, FCVAR_CHANGED );
SetBits( vid_gamma->flags, FCVAR_CHANGED );
}
else
#endif
if( FBitSet( vid_gamma->flags, FCVAR_CHANGED ) || FBitSet( vid_brightness->flags, FCVAR_CHANGED ))
{
gEngfuncs.BuildGammaTable( vid_gamma->value, vid_brightness->value );
D_FlushCaches( );
// next frame will be restored gamma
ClearBits( vid_brightness->flags, FCVAR_CHANGED );
ClearBits( vid_gamma->flags, FCVAR_CHANGED );
}
R_Set2DMode( true );
// draw buffer stuff
//pglDrawBuffer( GL_BACK );
// update texture parameters
//if( FBitSet( gl_texture_nearest->flags|gl_lightmap_nearest->flags|gl_texture_anisotropy->flags|gl_texture_lodbias->flags, FCVAR_CHANGED ))
//R_SetTextureParameters();
gEngfuncs.CL_ExtraUpdate ();
}
/*
===============
R_SetupRefParams
set initial params for renderer
===============
*/
void R_SetupRefParams( const ref_viewpass_t *rvp )
{
RI.params = RP_NONE;
RI.drawWorld = FBitSet( rvp->flags, RF_DRAW_WORLD );
RI.onlyClientDraw = FBitSet( rvp->flags, RF_ONLY_CLIENTDRAW );
if( !FBitSet( rvp->flags, RF_DRAW_CUBEMAP ))
RI.drawOrtho = FBitSet( rvp->flags, RF_DRAW_OVERVIEW );
else RI.drawOrtho = false;
// setup viewport
RI.viewport[0] = rvp->viewport[0];
RI.viewport[1] = rvp->viewport[1];
RI.viewport[2] = rvp->viewport[2];
RI.viewport[3] = rvp->viewport[3];
// calc FOV
RI.fov_x = rvp->fov_x;
RI.fov_y = rvp->fov_y;
VectorCopy( rvp->vieworigin, RI.vieworg );
VectorCopy( rvp->viewangles, RI.viewangles );
VectorCopy( rvp->vieworigin, RI.pvsorigin );
}
/*
===============
R_RenderFrame
===============
*/
void GAME_EXPORT R_RenderFrame( const ref_viewpass_t *rvp )
{
if( r_norefresh->value )
return;
// prevent cache overrun
if( gpGlobals->height > vid.height || gpGlobals->width > vid.width )
return;
// setup the initial render params
R_SetupRefParams( rvp );
// completely override rendering
if( gEngfuncs.drawFuncs->GL_RenderFrame != NULL )
{
tr.fCustomRendering = true;
if( gEngfuncs.drawFuncs->GL_RenderFrame( rvp ))
{
//R_GatherPlayerLight();
tr.realframecount++;
tr.fResetVis = true;
return;
}
}
tr.fCustomRendering = false;
if( !RI.onlyClientDraw )
R_RunViewmodelEvents();
tr.realframecount++; // right called after viewmodel events
R_RenderScene();
return;
}
/*
===============
R_EndFrame
===============
*/
void GAME_EXPORT R_EndFrame( void )
{
// flush any remaining 2D bits
R_Set2DMode( false );
// blit pixels
R_BlitScreen();
}
/*
===============
R_DrawCubemapView
===============
*/
void R_DrawCubemapView( const vec3_t origin, const vec3_t angles, int size )
{
ref_viewpass_t rvp;
// basic params
rvp.flags = rvp.viewentity = 0;
SetBits( rvp.flags, RF_DRAW_WORLD );
SetBits( rvp.flags, RF_DRAW_CUBEMAP );
rvp.viewport[0] = rvp.viewport[1] = 0;
rvp.viewport[2] = rvp.viewport[3] = size;
rvp.fov_x = rvp.fov_y = 90.0f; // this is a final fov value
// setup origin & angles
VectorCopy( origin, rvp.vieworigin );
VectorCopy( angles, rvp.viewangles );
R_RenderFrame( &rvp );
RI.viewleaf = NULL; // force markleafs next frame
}
/*
===============
R_NewMap
===============
*/
void GAME_EXPORT R_NewMap (void)
{
int i;
model_t *world = WORLDMODEL;
r_viewcluster = -1;
tr.draw_list->num_solid_entities = 0;
tr.draw_list->num_trans_entities = 0;
tr.draw_list->num_beam_entities = 0;
tr.draw_list->num_edge_entities = 0;
R_ClearDecals(); // clear all level decals
R_StudioResetPlayerModels();
r_cnumsurfs = sw_maxsurfs->value;
if (r_cnumsurfs <= MINSURFACES)
r_cnumsurfs = MINSURFACES;
if (r_cnumsurfs > NUMSTACKSURFACES)
{
surfaces = Mem_Calloc (r_temppool, r_cnumsurfs * sizeof(surf_t));
surface_p = surfaces;
surf_max = &surfaces[r_cnumsurfs];
r_surfsonstack = false;
// surface 0 doesn't really exist; it's just a dummy because index 0
// is used to indicate no edge attached to surface
surfaces--;
R_SurfacePatch ();
}
else
{
r_surfsonstack = true;
}
r_numallocatededges = sw_maxedges->value;
if (r_numallocatededges < MINEDGES)
r_numallocatededges = MINEDGES;
if (r_numallocatededges <= NUMSTACKEDGES)
{
auxedges = NULL;
}
else
{
auxedges = Mem_Malloc (r_temppool, r_numallocatededges * sizeof(edge_t) );
}
// clear out efrags in case the level hasn't been reloaded
for( i = 0; i < world->numleafs; i++ )
world->leafs[i+1].efrags = NULL;
tr.sample_size = gEngfuncs.Mod_SampleSizeForFace( &world->surfaces[0] );
for( i = 1; i < world->numsurfaces; i++ )
{
int sample_size = gEngfuncs.Mod_SampleSizeForFace( &world->surfaces[i] );
if( sample_size != tr.sample_size )
{
tr.sample_size = -1;
break;
}
}
tr.sample_bits = -1;
if( tr.sample_size != -1 )
{
uint sample_pot;
tr.sample_bits = 0;
for( sample_pot = 1; sample_pot < tr.sample_size; sample_pot <<= 1, tr.sample_bits++ );
}
gEngfuncs.Con_Printf("Map sample size is %d\n", tr.sample_size );
}
/*
================
R_InitTurb
================
*/
void R_InitTurb (void)
{
int i;
for (i=0 ; i<1280 ; i++)
{
sintable[i] = AMP + sin(i*3.14159*2/CYCLE)*AMP;
intsintable[i] = AMP2 + sin(i*3.14159*2/CYCLE)*AMP2; // AMP2, not 20
blanktable[i] = 0; //PGM
}
}
qboolean GAME_EXPORT R_Init( void )
{
qboolean glblit = false;
gl_emboss_scale = gEngfuncs.Cvar_Get( "gl_emboss_scale", "0", FCVAR_ARCHIVE|FCVAR_LATCH, "fake bumpmapping scale" );
vid_gamma = gEngfuncs.pfnGetCvarPointer( "gamma", 0 );
r_norefresh = gEngfuncs.Cvar_Get( "r_norefresh", "0", 0, "disable 3D rendering (use with caution)" );
r_drawentities = gEngfuncs.Cvar_Get( "r_drawentities", "1", FCVAR_CHEAT, "render entities" );
vid_brightness = gEngfuncs.pfnGetCvarPointer( "brightness", 0 );
r_fullbright = gEngfuncs.Cvar_Get( "r_fullbright", "0", FCVAR_CHEAT, "disable lightmaps, get fullbright for entities" );
r_dynamic = gEngfuncs.Cvar_Get( "r_dynamic", "1", FCVAR_ARCHIVE, "allow dynamic lighting (dlights, lightstyles)" );
r_lightmap = gEngfuncs.Cvar_Get( "r_lightmap", "0", FCVAR_CHEAT, "lightmap debugging tool" );
// sw_aliasstats = ri.Cvar_Get ("sw_polymodelstats", "0", 0);
// sw_allow_modex = ri.Cvar_Get( "sw_allow_modex", "1", CVAR_ARCHIVE );
sw_clearcolor = gEngfuncs.Cvar_Get ("sw_clearcolor", "48999", 0, "screen clear color");
sw_drawflat = gEngfuncs.Cvar_Get ("sw_drawflat", "0", 0, "");
sw_draworder = gEngfuncs.Cvar_Get ("sw_draworder", "0", 0, "");
sw_maxedges = gEngfuncs.Cvar_Get ("sw_maxedges", "32", 0, "");
sw_maxsurfs = gEngfuncs.Cvar_Get ("sw_maxsurfs", "0", 0, "");
sw_mipscale = gEngfuncs.Cvar_Get ("sw_mipscale", "1", FCVAR_GLCONFIG, "nothing");
sw_mipcap = gEngfuncs.Cvar_Get( "sw_mipcap", "0", FCVAR_GLCONFIG, "nothing" );
sw_reportedgeout = gEngfuncs.Cvar_Get ("sw_reportedgeout", "0", 0, "");
sw_reportsurfout = gEngfuncs.Cvar_Get ("sw_reportsurfout", "0", 0, "");
sw_stipplealpha = gEngfuncs.Cvar_Get( "sw_stipplealpha", "1", FCVAR_GLCONFIG, "nothing" );
sw_surfcacheoverride = gEngfuncs.Cvar_Get ("sw_surfcacheoverride", "0", 0, "");
sw_waterwarp = gEngfuncs.Cvar_Get ("sw_waterwarp", "1", FCVAR_GLCONFIG, "nothing");
sw_notransbrushes = gEngfuncs.Cvar_Get( "sw_notransbrushes", "0", FCVAR_GLCONFIG, "do not apply transparency to water/glasses (faster)");
sw_noalphabrushes = gEngfuncs.Cvar_Get( "sw_noalphabrushes", "0", FCVAR_GLCONFIG, "do not draw brush holes (faster)");
r_traceglow = gEngfuncs.Cvar_Get( "r_traceglow", "1", FCVAR_ARCHIVE, "cull flares behind models" );
#ifndef DISABLE_TEXFILTER
sw_texfilt = gEngfuncs.Cvar_Get ("sw_texfilt", "0", FCVAR_GLCONFIG, "texture dither");
#endif
//r_lefthand = ri.Cvar_Get( "hand", "0", FCVAR_USERINFO | FCVAR_ARCHIVE );
// r_speeds = ri.Cvar_Get ("r_speeds", "0", 0);
r_decals = gEngfuncs.pfnGetCvarPointer( "r_decals", 0 );
//r_drawworld = ri.Cvar_Get ("r_drawworld", "1", 0);
//r_dspeeds = ri.Cvar_Get ("r_dspeeds", "0", 0);
// r_lightlevel = ri.Cvar_Get ("r_lightlevel", "0", 0);
//r_lerpmodels = ri.Cvar_Get( "r_lerpmodels", "1", 0 );
r_novis = gEngfuncs.Cvar_Get( "r_novis", "0", 0, "" );
tracerred = gEngfuncs.Cvar_Get( "tracerred", "0.8", 0, "tracer red component weight ( 0 - 1.0 )" );
tracergreen = gEngfuncs.Cvar_Get( "tracergreen", "0.8", 0, "tracer green component weight ( 0 - 1.0 )" );
tracerblue = gEngfuncs.Cvar_Get( "tracerblue", "0.4", 0, "tracer blue component weight ( 0 - 1.0 )" );
traceralpha = gEngfuncs.Cvar_Get( "traceralpha", "0.5", 0, "tracer alpha amount ( 0 - 1.0 )" );
r_temppool = Mem_AllocPool( "ref_soft zone" );
glblit = !!gEngfuncs.Sys_CheckParm( "-glblit" );
// create the window and set up the context
if( !glblit && !gEngfuncs.R_Init_Video( REF_SOFTWARE )) // request software blitter
{
gEngfuncs.R_Free_Video();
gEngfuncs.Con_Printf("failed to initialize software blitter, fallback to glblit\n");
glblit = true;
}
if( glblit && !gEngfuncs.R_Init_Video( REF_GL )) // request GL context
{
gEngfuncs.R_Free_Video();
return false;
}
R_InitBlit( glblit );
R_InitImages();
// init draw stack
tr.draw_list = &tr.draw_stack[0];
tr.draw_stack_pos = 0;
qfrustum.view_clipplanes[0].leftedge = true;
qfrustum.view_clipplanes[1].rightedge = true;
qfrustum.view_clipplanes[1].leftedge = qfrustum.view_clipplanes[2].leftedge =qfrustum.view_clipplanes[3].leftedge = false;
qfrustum.view_clipplanes[0].rightedge = qfrustum.view_clipplanes[2].rightedge = qfrustum.view_clipplanes[3].rightedge = false;
R_StudioInit();
R_SpriteInit();
R_InitTurb();
return true;
}
void GAME_EXPORT R_Shutdown( void )
{
R_ShutdownImages();
gEngfuncs.R_Free_Video();
}
/*
===============
CL_FxBlend
===============
*/
int CL_FxBlend( cl_entity_t *e )
{
int blend = 0;
float offset, dist;
vec3_t tmp;
offset = ((int)e->index ) * 363.0f; // Use ent index to de-sync these fx
switch( e->curstate.renderfx )
{
case kRenderFxPulseSlowWide:
blend = e->curstate.renderamt + 0x40 * sin( gpGlobals->time * 2 + offset );
break;
case kRenderFxPulseFastWide:
blend = e->curstate.renderamt + 0x40 * sin( gpGlobals->time * 8 + offset );
break;
case kRenderFxPulseSlow:
blend = e->curstate.renderamt + 0x10 * sin( gpGlobals->time * 2 + offset );
break;
case kRenderFxPulseFast:
blend = e->curstate.renderamt + 0x10 * sin( gpGlobals->time * 8 + offset );
break;
case kRenderFxFadeSlow:
if( RP_NORMALPASS( ))
{
if( e->curstate.renderamt > 0 )
e->curstate.renderamt -= 1;
else e->curstate.renderamt = 0;
}
blend = e->curstate.renderamt;
break;
case kRenderFxFadeFast:
if( RP_NORMALPASS( ))
{
if( e->curstate.renderamt > 3 )
e->curstate.renderamt -= 4;
else e->curstate.renderamt = 0;
}
blend = e->curstate.renderamt;
break;
case kRenderFxSolidSlow:
if( RP_NORMALPASS( ))
{
if( e->curstate.renderamt < 255 )
e->curstate.renderamt += 1;
else e->curstate.renderamt = 255;
}
blend = e->curstate.renderamt;
break;
case kRenderFxSolidFast:
if( RP_NORMALPASS( ))
{
if( e->curstate.renderamt < 252 )
e->curstate.renderamt += 4;
else e->curstate.renderamt = 255;
}
blend = e->curstate.renderamt;
break;
case kRenderFxStrobeSlow:
blend = 20 * sin( gpGlobals->time * 4 + offset );
if( blend < 0 ) blend = 0;
else blend = e->curstate.renderamt;
break;
case kRenderFxStrobeFast:
blend = 20 * sin( gpGlobals->time * 16 + offset );
if( blend < 0 ) blend = 0;
else blend = e->curstate.renderamt;
break;
case kRenderFxStrobeFaster:
blend = 20 * sin( gpGlobals->time * 36 + offset );
if( blend < 0 ) blend = 0;
else blend = e->curstate.renderamt;
break;
case kRenderFxFlickerSlow:
blend = 20 * (sin( gpGlobals->time * 2 ) + sin( gpGlobals->time * 17 + offset ));
if( blend < 0 ) blend = 0;
else blend = e->curstate.renderamt;
break;
case kRenderFxFlickerFast:
blend = 20 * (sin( gpGlobals->time * 16 ) + sin( gpGlobals->time * 23 + offset ));
if( blend < 0 ) blend = 0;
else blend = e->curstate.renderamt;
break;
case kRenderFxHologram:
case kRenderFxDistort:
VectorCopy( e->origin, tmp );
VectorSubtract( tmp, RI.vieworg, tmp );
dist = DotProduct( tmp, RI.vforward );
// turn off distance fade
if( e->curstate.renderfx == kRenderFxDistort )
dist = 1;
if( dist <= 0 )
{
blend = 0;
}
else
{
e->curstate.renderamt = 180;
if( dist <= 100 ) blend = e->curstate.renderamt;
else blend = (int) ((1.0f - ( dist - 100 ) * ( 1.0f / 400.0f )) * e->curstate.renderamt );
blend += gEngfuncs.COM_RandomLong( -32, 31 );
}
break;
default:
blend = e->curstate.renderamt;
break;
}
blend = bound( 0, blend, 255 );
return blend;
}
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